151572141 has 30 divisors (see below), whose sum is σ = 263396430. Its totient is φ = 86610384.

The previous prime is 151572137. The next prime is 151572143. The reversal of 151572141 is 141275151.

151572141 is a `hidden beast` number, since 1 + 51 + 572 + 1 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 99082116 + 52490025 = 9954^2 + 7245^2 .

It is not a de Polignac number, because 151572141 - 2² = 151572137 is a prime.

It is a super-2 number, since 2×151572141² = 45948227854647762, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151572143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 15126 + ... + 23063.

It is an arithmetic number, because the mean of its divisors is an integer number (8779881).

Almost surely, 2^151572141 is an apocalyptic number.

It is an amenable number.

151572141 is a deficient number, since it is larger than the sum of its proper divisors (111824289).

151572141 is an equidigital number, since it uses as much as digits as its factorization.

151572141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38215 (or 38199 counting only the distinct ones).

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

The square root of 151572141 is about 12311.4638041136. The cubic root of 151572141 is about 533.1791136998.

The spelling of 151572141 in words is "one hundred fifty-one million, five hundred seventy-two thousand, one hundred forty-one".