245156545 has 16 divisors (see below), whose sum is σ = 301593600. Its totient is φ = 191205504.

The previous prime is 245156531. The next prime is 245156603. The reversal of 245156545 is 545651542.

245156545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 245156545 - 2¹⁵ = 245123777 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224992 + ... + 226078.

It is an arithmetic number, because the mean of its divisors is an integer number (18849600).

Almost surely, 2^245156545 is an apocalyptic number.

It is an amenable number.

245156545 is a deficient number, since it is larger than the sum of its proper divisors (56437055).

245156545 is a wasteful number, since it uses less digits than its factorization.

245156545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2184.

The product of its digits is 120000, while the sum is 37.

The square root of 245156545 is about 15657.4756905448. The cubic root of 245156545 is about 625.8657186962.

It can be divided in two parts, 2451 and 56545, that added together give a triangular number (58996 = T₃₄₃).

The spelling of 245156545 in words is "two hundred forty-five million, one hundred fifty-six thousand, five hundred forty-five".