145323757 has 4 divisors (see below), whose sum is σ = 145518016. Its totient is φ = 145129500.

The previous prime is 145323743. The next prime is 145323767. The reversal of 145323757 is 757323541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145323757 - 2¹⁵ = 145290989 is a prime.

It is a super-2 number, since 2×145323757² = 42237988697190098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145323707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96003 + ... + 97504.

It is an arithmetic number, because the mean of its divisors is an integer number (36379504).

Almost surely, 2^145323757 is an apocalyptic number.

It is an amenable number.

145323757 is a deficient number, since it is larger than the sum of its proper divisors (194259).

145323757 is an equidigital number, since it uses as much as digits as its factorization.

145323757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194258.

The product of its digits is 88200, while the sum is 37.

The square root of 145323757 is about 12055.0303608079. The cubic root of 145323757 is about 525.7495048356.

The spelling of 145323757 in words is "one hundred forty-five million, three hundred twenty-three thousand, seven hundred fifty-seven".