156988453 has 4 divisors (see below), whose sum is σ = 157276000. Its totient is φ = 156700908.

The previous prime is 156988427. The next prime is 156988493. The reversal of 156988453 is 354889651.

156988453 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 354889651 = 191 ⋅1858061.

It is a cyclic number.

It is not a de Polignac number, because 156988453 - 2¹⁷ = 156857381 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 156988397 and 156988406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156988423) 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, 142953 + ... + 144046.

It is an arithmetic number, because the mean of its divisors is an integer number (39319000).

Almost surely, 2^156988453 is an apocalyptic number.

It is an amenable number.

156988453 is a deficient number, since it is larger than the sum of its proper divisors (287547).

156988453 is an equidigital number, since it uses as much as digits as its factorization.

156988453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287546.

The product of its digits is 1036800, while the sum is 49.

The square root of 156988453 is about 12529.5033022064. The cubic root of 156988453 is about 539.4558453042.

The spelling of 156988453 in words is "one hundred fifty-six million, nine hundred eighty-eight thousand, four hundred fifty-three".