145313057 has 8 divisors (see below), whose sum is σ = 152155584. Its totient is φ = 138514288.

The previous prime is 145313009. The next prime is 145313071. The reversal of 145313057 is 750313541.

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 145313057 - 2¹⁶ = 145247521 is a prime.

It is a super-2 number, since 2×145313057² = 42231769069370498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145313087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4043 + ... + 17520.

It is an arithmetic number, because the mean of its divisors is an integer number (19019448).

Almost surely, 2^145313057 is an apocalyptic number.

It is an amenable number.

145313057 is a deficient number, since it is larger than the sum of its proper divisors (6842527).

145313057 is a wasteful number, since it uses less digits than its factorization.

145313057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21879.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 145313057 is about 12054.5865545028. The cubic root of 145313057 is about 525.7366011005.

Adding to 145313057 its reverse (750313541), we get a palindrome (895626598).

The spelling of 145313057 in words is "one hundred forty-five million, three hundred thirteen thousand, fifty-seven".