145772464 has 10 divisors (see below), whose sum is σ = 282434180. Its totient is φ = 72886224.

The previous prime is 145772461. The next prime is 145772479. The reversal of 145772464 is 464277541.

It is a super-2 number, since 2×145772464² = 42499222521262592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145772461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4555374 + ... + 4555405.

It is an arithmetic number, because the mean of its divisors is an integer number (28243418).

Almost surely, 2^145772464 is an apocalyptic number.

It is an amenable number.

145772464 is a deficient number, since it is larger than the sum of its proper divisors (136661716).

145772464 is an equidigital number, since it uses as much as digits as its factorization.

145772464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9110787 (or 9110781 counting only the distinct ones).

The product of its digits is 188160, while the sum is 40.

The square root of 145772464 is about 12073.6267956236. The cubic root of 145772464 is about 526.2900567377.

The spelling of 145772464 in words is "one hundred forty-five million, seven hundred seventy-two thousand, four hundred sixty-four".