150477525721 has 2 divisors, whose sum is σ = 150477525722. Its totient is φ = 150477525720.

The previous prime is 150477525659. The next prime is 150477525727. The reversal of 150477525721 is 127525774051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98602908121 + 51874617600 = 314011^2 + 227760^2 .

It is a cyclic number.

It is not a de Polignac number, because 150477525721 - 2²³ = 150469137113 is a prime.

It is a super-2 number, since 2×150477525721² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (150477525727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75238762860 + 75238762861.

It is an arithmetic number, because the mean of its divisors is an integer number (75238762861).

Almost surely, 2^150477525721 is an apocalyptic number.

It is an amenable number.

150477525721 is a deficient number, since it is larger than the sum of its proper divisors (1).

150477525721 is an equidigital number, since it uses as much as digits as its factorization.

150477525721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 686000, while the sum is 46.

The spelling of 150477525721 in words is "one hundred fifty billion, four hundred seventy-seven million, five hundred twenty-five thousand, seven hundred twenty-one".