146520751 has 4 divisors (see below), whose sum is σ = 157791592. Its totient is φ = 135249912.

The previous prime is 146520733. The next prime is 146520763. The reversal of 146520751 is 157025641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 157025641 = 2351 ⋅66791.

It is a cyclic number.

It is not a de Polignac number, because 146520751 - 2⁹ = 146520239 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 (146520251) 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, 5635401 + ... + 5635426.

It is an arithmetic number, because the mean of its divisors is an integer number (39447898).

Almost surely, 2^146520751 is an apocalyptic number.

146520751 is a deficient number, since it is larger than the sum of its proper divisors (11270841).

146520751 is a wasteful number, since it uses less digits than its factorization.

146520751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11270840.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 146520751 is about 12104.5756224661. The cubic root of 146520751 is about 527.1890469850.

The spelling of 146520751 in words is "one hundred forty-six million, five hundred twenty thousand, seven hundred fifty-one".