152206691 has 12 divisors (see below), whose sum is σ = 190677312. Its totient is φ = 120426768.

The previous prime is 152206687. The next prime is 152206721. The reversal of 152206691 is 196602251.

It is a happy number.

152206691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 152206691 - 2² = 152206687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (152206601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118835 + ... + 120108.

It is an arithmetic number, because the mean of its divisors is an integer number (15889776).

Almost surely, 2^152206691 is an apocalyptic number.

152206691 is a deficient number, since it is larger than the sum of its proper divisors (38470621).

152206691 is a wasteful number, since it uses less digits than its factorization.

152206691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238970 (or 238963 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 152206691 is about 12337.2075851872. The cubic root of 152206691 is about 533.9221213233.

The spelling of 152206691 in words is "one hundred fifty-two million, two hundred six thousand, six hundred ninety-one".