145063731 has 8 divisors (see below), whose sum is σ = 193475520. Its totient is φ = 96680552.

The previous prime is 145063649. The next prime is 145063741. The reversal of 145063731 is 137360541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145063731 - 2⁷ = 145063603 is a prime.

It is a super-2 number, since 2×145063731² = 42086972103280722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145063741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12040 + ... + 20858.

It is an arithmetic number, because the mean of its divisors is an integer number (24184440).

Almost surely, 2^145063731 is an apocalyptic number.

145063731 is a deficient number, since it is larger than the sum of its proper divisors (48411789).

145063731 is an equidigital number, since it uses as much as digits as its factorization.

145063731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14305.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 145063731 is about 12044.2405738178. The cubic root of 145063731 is about 525.4357452648.

The spelling of 145063731 in words is "one hundred forty-five million, sixty-three thousand, seven hundred thirty-one".