152071477 has 4 divisors (see below), whose sum is σ = 161016876. Its totient is φ = 143126080.

The previous prime is 152071463. The next prime is 152071519. The reversal of 152071477 is 774170251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 131767441 + 20304036 = 11479^2 + 4506^2 .

It is a cyclic number.

It is not a de Polignac number, because 152071477 - 2¹¹ = 152069429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152071427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4472674 + ... + 4472707.

It is an arithmetic number, because the mean of its divisors is an integer number (40254219).

Almost surely, 2^152071477 is an apocalyptic number.

152071477 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

152071477 is a deficient number, since it is larger than the sum of its proper divisors (8945399).

152071477 is an equidigital number, since it uses as much as digits as its factorization.

152071477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8945398.

The product of its (nonzero) digits is 13720, while the sum is 34.

The square root of 152071477 is about 12331.7264403651. The cubic root of 152071477 is about 533.7639698567.

The spelling of 152071477 in words is "one hundred fifty-two million, seventy-one thousand, four hundred seventy-seven".