145160861 has 4 divisors (see below), whose sum is σ = 145248000. Its totient is φ = 145073724.

The previous prime is 145160839. The next prime is 145160891. The reversal of 145160861 is 168061541.

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 145160861 - 2¹⁰ = 145159837 is a prime.

It is a super-2 number, since 2×145160861² = 42143351132522642, 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 (145160891) 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, 41021 + ... + 44418.

It is an arithmetic number, because the mean of its divisors is an integer number (36312000).

Almost surely, 2^145160861 is an apocalyptic number.

It is an amenable number.

145160861 is a deficient number, since it is larger than the sum of its proper divisors (87139).

145160861 is an equidigital number, since it uses as much as digits as its factorization.

145160861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87138.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 145160861 is about 12048.2721167809. The cubic root of 145160861 is about 525.5529907155.

The spelling of 145160861 in words is "one hundred forty-five million, one hundred sixty thousand, eight hundred sixty-one".