145831653 has 12 divisors (see below), whose sum is σ = 229795488. Its totient is φ = 88382760.

The previous prime is 145831639. The next prime is 145831733. The reversal of 145831653 is 356138541.

145831653 is a `hidden beast` number, since 14 + 583 + 1 + 65 + 3 = 666.

145831653 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 145831653 - 2¹⁴ = 145815269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145831603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 736425 + ... + 736622.

It is an arithmetic number, because the mean of its divisors is an integer number (19149624).

Almost surely, 2^145831653 is an apocalyptic number.

It is an amenable number.

145831653 is a deficient number, since it is larger than the sum of its proper divisors (83963835).

145831653 is a wasteful number, since it uses less digits than its factorization.

145831653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473064 (or 1473061 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 145831653 is about 12076.0777158811. The cubic root of 145831653 is about 526.3612781608.

The spelling of 145831653 in words is "one hundred forty-five million, eight hundred thirty-one thousand, six hundred fifty-three".