151620471 has 16 divisors (see below), whose sum is σ = 224824800. Its totient is φ = 100989504.

The previous prime is 151620457. The next prime is 151620527. The reversal of 151620471 is 174026151.

It is a happy number.

151620471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 151620471 - 2⁶ = 151620407 is a prime.

It is a super-3 number, since 3×151620471³ (a number of 26 digits) contains 333 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 (151620401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43045 + ... + 46433.

It is an arithmetic number, because the mean of its divisors is an integer number (14051550).

Almost surely, 2^151620471 is an apocalyptic number.

151620471 is a deficient number, since it is larger than the sum of its proper divisors (73204329).

151620471 is a wasteful number, since it uses less digits than its factorization.

151620471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5055 (or 5049 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 151620471 is about 12313.4264524542. The cubic root of 151620471 is about 533.2357771650.

The spelling of 151620471 in words is "one hundred fifty-one million, six hundred twenty thousand, four hundred seventy-one".