1332011657 has 4 divisors (see below), whose sum is σ = 1351892496. Its totient is φ = 1312130820.

The previous prime is 1332011651. The next prime is 1332011669. The reversal of 1332011657 is 7561102331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7561102331 = 45631 ⋅165701.

It is a cyclic number.

It is not a de Polignac number, because 1332011657 - 2⁴ = 1332011641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1332011651) 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, 9940319 + ... + 9940452.

It is an arithmetic number, because the mean of its divisors is an integer number (337973124).

Almost surely, 2^1332011657 is an apocalyptic number.

It is an amenable number.

1332011657 is a deficient number, since it is larger than the sum of its proper divisors (19880839).

1332011657 is an equidigital number, since it uses as much as digits as its factorization.

1332011657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19880838.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 1332011657 is about 36496.7348813562. The cubic root of 1332011657 is about 1100.2786228091.

Adding to 1332011657 its reverse (7561102331), we get a palindrome (8893113988).

The spelling of 1332011657 in words is "one billion, three hundred thirty-two million, eleven thousand, six hundred fifty-seven".