155742045 has 16 divisors (see below), whose sum is σ = 249492480. Its totient is φ = 82960704.

The previous prime is 155742043. The next prime is 155742053. The reversal of 155742045 is 540247551.

It is not a de Polignac number, because 155742045 - 2¹ = 155742043 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 155741997 and 155742015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155742043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7236 + ... + 19074.

It is an arithmetic number, because the mean of its divisors is an integer number (15593280).

Almost surely, 2^155742045 is an apocalyptic number.

155742045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155742045 is a deficient number, since it is larger than the sum of its proper divisors (93750435).

155742045 is a wasteful number, since it uses less digits than its factorization.

155742045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12724.

The product of its (nonzero) digits is 28000, while the sum is 33.

The square root of 155742045 is about 12479.6652599339. The cubic root of 155742045 is about 538.0243824257.

Adding to 155742045 its reverse (540247551), we get a palindrome (695989596).

The spelling of 155742045 in words is "one hundred fifty-five million, seven hundred forty-two thousand, forty-five".