152511481 has 8 divisors (see below), whose sum is σ = 153767880. Its totient is φ = 151260672.

The previous prime is 152511473. The next prime is 152511503. The reversal of 152511481 is 184115251.

It can be written as a sum of positive squares in 4 ways, for example, as 127351225 + 25160256 = 11285^2 + 5016^2 .

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 152511481 - 2³ = 152511473 is a prime.

It is a super-2 number, since 2×152511481² = 46519503673626722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152517481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65961 + ... + 68233.

It is an arithmetic number, because the mean of its divisors is an integer number (19220985).

Almost surely, 2^152511481 is an apocalyptic number.

It is an amenable number.

152511481 is a deficient number, since it is larger than the sum of its proper divisors (1256399).

152511481 is a wasteful number, since it uses less digits than its factorization.

152511481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2795.

The product of its digits is 1600, while the sum is 28.

The square root of 152511481 is about 12349.5538785820. The cubic root of 152511481 is about 534.2782721586.

The spelling of 152511481 in words is "one hundred fifty-two million, five hundred eleven thousand, four hundred eighty-one".