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152661 = 3151337
BaseRepresentation
bin100101010001010101
321202102010
4211101111
514341121
63134433
71204035
oct452125
9252363
10152661
11a4773
1274419
1354642
143d8c5
1530376
hex25455

152661 has 8 divisors (see below), whose sum is σ = 205504. Its totient is φ = 100800.

The previous prime is 152657. The next prime is 152671. The reversal of 152661 is 166251.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 152661 - 22 = 152657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285 + ... + 621.

It is an arithmetic number, because the mean of its divisors is an integer number (25688).

2152661 is an apocalyptic number.

It is an amenable number.

152661 is a deficient number, since it is larger than the sum of its proper divisors (52843).

152661 is a wasteful number, since it uses less digits than its factorization.

152661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491.

The product of its digits is 360, while the sum is 21.

The square root of 152661 is about 390.7185687934. The cubic root of 152661 is about 53.4452813469.

The spelling of 152661 in words is "one hundred fifty-two thousand, six hundred sixty-one".

Divisors: 1 3 151 337 453 1011 50887 152661