155051745 has 16 divisors (see below), whose sum is σ = 248806080. Its totient is φ = 82453184.

The previous prime is 155051711. The next prime is 155051753. The reversal of 155051745 is 547150551.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 155051745 - 2¹⁵ = 155018977 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, 9690 + ... + 20099.

It is an arithmetic number, because the mean of its divisors is an integer number (15550380).

Almost surely, 2^155051745 is an apocalyptic number.

155051745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155051745 is a deficient number, since it is larger than the sum of its proper divisors (93754335).

155051745 is a wasteful number, since it uses less digits than its factorization.

155051745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30144.

The product of its (nonzero) digits is 17500, while the sum is 33.

The square root of 155051745 is about 12451.9775537864. The cubic root of 155051745 is about 537.2283047275.

The spelling of 155051745 in words is "one hundred fifty-five million, fifty-one thousand, seven hundred forty-five".