997262151 has 16 divisors (see below), whose sum is σ = 1358622720. Its totient is φ = 650443040.

The previous prime is 997262137. The next prime is 997262173. The reversal of 997262151 is 151262799.

997262151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 997262151 - 2⁶ = 997262087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997262111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48346 + ... + 65816.

It is an arithmetic number, because the mean of its divisors is an integer number (84913920).

Almost surely, 2^997262151 is an apocalyptic number.

997262151 is a deficient number, since it is larger than the sum of its proper divisors (361360569).

997262151 is a wasteful number, since it uses less digits than its factorization.

997262151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17886.

The product of its digits is 68040, while the sum is 42.

The square root of 997262151 is about 31579.4577375863. The cubic root of 997262151 is about 999.0865495290.

The spelling of 997262151 in words is "nine hundred ninety-seven million, two hundred sixty-two thousand, one hundred fifty-one".