157981102 has 16 divisors (see below), whose sum is σ = 251277552. Its totient is φ = 74235520.

The previous prime is 157981079. The next prime is 157981123. The reversal of 157981102 is 201189751.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23277 + ... + 29287.

It is an arithmetic number, because the mean of its divisors is an integer number (15704847).

Almost surely, 2^157981102 is an apocalyptic number.

157981102 is a deficient number, since it is larger than the sum of its proper divisors (93296450).

157981102 is a wasteful number, since it uses less digits than its factorization.

157981102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6803.

The product of its (nonzero) digits is 5040, while the sum is 34.

The square root of 157981102 is about 12569.0533454195. The cubic root of 157981102 is about 540.5904629479.

It can be divided in two parts, 15798 and 1102, that added together give a square (16900 = 130²).

The spelling of 157981102 in words is "one hundred fifty-seven million, nine hundred eighty-one thousand, one hundred two".