145561413 has 16 divisors (see below), whose sum is σ = 204664320. Its totient is φ = 91768176.

The previous prime is 145561379. The next prime is 145561447. The reversal of 145561413 is 314165541.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (145561379) and next prime (145561447).

It is not a de Polignac number, because 145561413 - 2⁹ = 145560901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145561483) 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 15 ways as a sum of consecutive naturals, for example, 34906 + ... + 38852.

It is an arithmetic number, because the mean of its divisors is an integer number (12791520).

Almost surely, 2^145561413 is an apocalyptic number.

It is an amenable number.

145561413 is a deficient number, since it is larger than the sum of its proper divisors (59102907).

145561413 is a wasteful number, since it uses less digits than its factorization.

145561413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4616.

The product of its digits is 7200, while the sum is 30.

The square root of 145561413 is about 12064.8834640041. The cubic root of 145561413 is about 526.0359445238.

The spelling of 145561413 in words is "one hundred forty-five million, five hundred sixty-one thousand, four hundred thirteen".