156029897 has 4 divisors (see below), whose sum is σ = 157023876. Its totient is φ = 155035920.

The previous prime is 156029891. The next prime is 156029899. The reversal of 156029897 is 798920651.

156029897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 798920651 = 17483 ⋅45697.

It can be written as a sum of positive squares in 2 ways, for example, as 77246521 + 78783376 = 8789^2 + 8876^2 .

It is a cyclic number.

It is not a de Polignac number, because 156029897 - 2¹⁴ = 156013513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156029891) 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, 496754 + ... + 497067.

It is an arithmetic number, because the mean of its divisors is an integer number (39255969).

Almost surely, 2^156029897 is an apocalyptic number.

It is an amenable number.

156029897 is a deficient number, since it is larger than the sum of its proper divisors (993979).

156029897 is an equidigital number, since it uses as much as digits as its factorization.

156029897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993978.

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 156029897 is about 12491.1927773131. The cubic root of 156029897 is about 538.3556483086.

The spelling of 156029897 in words is "one hundred fifty-six million, twenty-nine thousand, eight hundred ninety-seven".