145290913 has 8 divisors (see below), whose sum is σ = 146956032. Its totient is φ = 143631696.

The previous prime is 145290911. The next prime is 145290923. The reversal of 145290913 is 319092541.

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 145290913 - 2¹ = 145290911 is a prime.

It is a super-2 number, since 2×145290913² = 42218898800747138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145290911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63831 + ... + 66067.

It is an arithmetic number, because the mean of its divisors is an integer number (18369504).

Almost surely, 2^145290913 is an apocalyptic number.

It is an amenable number.

145290913 is a deficient number, since it is larger than the sum of its proper divisors (1665119).

145290913 is a wasteful number, since it uses less digits than its factorization.

145290913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2951.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 145290913 is about 12053.6680309356. The cubic root of 145290913 is about 525.7098943866.

The spelling of 145290913 in words is "one hundred forty-five million, two hundred ninety thousand, nine hundred thirteen".