145352570 has 32 divisors (see below), whose sum is σ = 288213120. Its totient is φ = 52338240.

The previous prime is 145352551. The next prime is 145352579. The reversal of 145352570 is 75253541.

145352570 = 1796² + 1797² + ... + 1839².

It is a super-2 number, since 2×145352570² = 42254739211209800, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145352579) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4916 + ... + 17744.

It is an arithmetic number, because the mean of its divisors is an integer number (9006660).

Almost surely, 2^145352570 is an apocalyptic number.

145352570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145352570 is a deficient number, since it is larger than the sum of its proper divisors (142860550).

145352570 is a wasteful number, since it uses less digits than its factorization.

145352570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12950.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 145352570 is about 12056.2253628571. The cubic root of 145352570 is about 525.7842489126.

The spelling of 145352570 in words is "one hundred forty-five million, three hundred fifty-two thousand, five hundred seventy".