145416452 has 6 divisors (see below), whose sum is σ = 254478798. Its totient is φ = 72708224.

The previous prime is 145416451. The next prime is 145416461. The reversal of 145416452 is 254614541.

It can be written as a sum of positive squares in only one way, i.e., 115648516 + 29767936 = 10754^2 + 5456^2 .

It is a super-2 number, since 2×145416452² = 42291889024536608, which contains 22 as substring.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (145416451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18177053 + ... + 18177060.

It is an arithmetic number, because the mean of its divisors is an integer number (42413133).

Almost surely, 2^145416452 is an apocalyptic number.

It is an amenable number.

145416452 is a deficient number, since it is larger than the sum of its proper divisors (109062346).

145416452 is a wasteful number, since it uses less digits than its factorization.

145416452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36354117 (or 36354115 counting only the distinct ones).

The product of its digits is 19200, while the sum is 32.

The square root of 145416452 is about 12058.8744085010. The cubic root of 145416452 is about 525.8612644755.

The spelling of 145416452 in words is "one hundred forty-five million, four hundred sixteen thousand, four hundred fifty-two".