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132021331 = 1310155487
BaseRepresentation
bin1111101111001…
…11110001010011
3100012102101012221
413313213301103
5232244140311
621033401511
73162106561
oct767476123
9305371187
10132021331
1168582642
1238269297
1321475840
1413768a31
15b8cc671
hex7de7c53

132021331 has 4 divisors (see below), whose sum is σ = 142176832. Its totient is φ = 121865832.

The previous prime is 132021319. The next prime is 132021347. The reversal of 132021331 is 133120231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 132021331 - 27 = 132021203 is a prime.

It is a super-2 number, since 2×1320213312 = 34859263678023122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132021391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5077731 + ... + 5077756.

It is an arithmetic number, because the mean of its divisors is an integer number (35544208).

Almost surely, 2132021331 is an apocalyptic number.

132021331 is a deficient number, since it is larger than the sum of its proper divisors (10155501).

132021331 is a wasteful number, since it uses less digits than its factorization.

132021331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10155500.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 132021331 is about 11490.0535681954. The cubic root of 132021331 is about 509.1917622172.

Adding to 132021331 its reverse (133120231), we get a palindrome (265141562).

The spelling of 132021331 in words is "one hundred thirty-two million, twenty-one thousand, three hundred thirty-one".

Divisors: 1 13 10155487 132021331