145307694 has 32 divisors (see below), whose sum is σ = 333616896. Its totient is φ = 41330880.

The previous prime is 145307693. The next prime is 145307713. The reversal of 145307694 is 496703541.

It is a super-2 number, since 2×145307694² = 42228651871195272, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145307693) 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, 1914 + ... + 17154.

It is an arithmetic number, because the mean of its divisors is an integer number (10425528).

Almost surely, 2^145307694 is an apocalyptic number.

145307694 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145307694 is an abundant number, since it is smaller than the sum of its proper divisors (188309202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145307694 is a wasteful number, since it uses less digits than its factorization.

145307694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15480.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 145307694 is about 12054.3641059991. The cubic root of 145307694 is about 525.7301333172.

The spelling of 145307694 in words is "one hundred forty-five million, three hundred seven thousand, six hundred ninety-four".