155703142 has 48 divisors (see below), whose sum is σ = 281408256. Its totient is φ = 63277200.

The previous prime is 155703137. The next prime is 155703161. The reversal of 155703142 is 241307551.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 155703142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 955153 + ... + 955315.

It is an arithmetic number, because the mean of its divisors is an integer number (5862672).

Almost surely, 2^155703142 is an apocalyptic number.

155703142 is a deficient number, since it is larger than the sum of its proper divisors (125705114).

155703142 is a wasteful number, since it uses less digits than its factorization.

155703142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 155703142 is about 12478.1065069986. The cubic root of 155703142 is about 537.9795807676.

The spelling of 155703142 in words is "one hundred fifty-five million, seven hundred three thousand, one hundred forty-two".