511232145 has 32 divisors (see below), whose sum is σ = 884311680. Its totient is φ = 251320320.

The previous prime is 511232123. The next prime is 511232153. The reversal of 511232145 is 541232115.

Added to its reverse (541232115) it gives a triangular number (1052464260 = T₄₅₈₇₉).

It is a happy number.

It is not a de Polignac number, because 511232145 - 2¹² = 511228049 is a prime.

It is a super-2 number, since 2×511232145² = 522716612162602050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13696 + ... + 34785.

It is an arithmetic number, because the mean of its divisors is an integer number (27634740).

Almost surely, 2^511232145 is an apocalyptic number.

It is an amenable number.

511232145 is a deficient number, since it is larger than the sum of its proper divisors (373079535).

511232145 is a wasteful number, since it uses less digits than its factorization.

511232145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48545.

The product of its digits is 1200, while the sum is 24.

The square root of 511232145 is about 22610.4432729657. The cubic root of 511232145 is about 799.5998754296.

Adding to 511232145 its reverse (541232115), we get a triangular number (1052464260 = T₄₅₈₇₉).

The spelling of 511232145 in words is "five hundred eleven million, two hundred thirty-two thousand, one hundred forty-five".