102120152157 has 24 divisors (see below), whose sum is σ = 149324666400. Its totient is φ = 67241573088.

The previous prime is 102120152143. The next prime is 102120152159. The reversal of 102120152157 is 751251021201.

102120152157 is a `hidden beast` number, since 10 + 2 + 120 + 1 + 521 + 5 + 7 = 666.

It is not a de Polignac number, because 102120152157 - 2¹⁸ = 102119890013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102120152157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120152159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3075319 + ... + 3108347.

It is an arithmetic number, because the mean of its divisors is an integer number (6221861100).

Almost surely, 2^102120152157 is an apocalyptic number.

It is an amenable number.

102120152157 is a deficient number, since it is larger than the sum of its proper divisors (47204514243).

102120152157 is a wasteful number, since it uses less digits than its factorization.

102120152157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37257 (or 37254 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

Adding to 102120152157 its reverse (751251021201), we get a palindrome (853371173358).

The spelling of 102120152157 in words is "one hundred two billion, one hundred twenty million, one hundred fifty-two thousand, one hundred fifty-seven".