150157121981 has 8 divisors (see below), whose sum is σ = 151243122240. Its totient is φ = 149073346528.

The previous prime is 150157121969. The next prime is 150157121993. The reversal of 150157121981 is 189121751051.

It is an interprime number because it is at equal distance from previous prime (150157121969) and next prime (150157121993).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 150157121981 - 2¹⁴ = 150157105597 is a prime.

It is a super-2 number, since 2×150157121981² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150157121281) 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 7 ways as a sum of consecutive naturals, for example, 420611 + ... + 690816.

It is an arithmetic number, because the mean of its divisors is an integer number (18905390280).

Almost surely, 2^150157121981 is an apocalyptic number.

It is an amenable number.

150157121981 is a deficient number, since it is larger than the sum of its proper divisors (1086000259).

150157121981 is a wasteful number, since it uses less digits than its factorization.

150157121981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112403.

The product of its (nonzero) digits is 25200, while the sum is 41.

The spelling of 150157121981 in words is "one hundred fifty billion, one hundred fifty-seven million, one hundred twenty-one thousand, nine hundred eighty-one".