155129746 has 8 divisors (see below), whose sum is σ = 235972224. Its totient is φ = 76472340.

The previous prime is 155129717. The next prime is 155129749. The reversal of 155129746 is 647921551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 155129699 and 155129708.

It is not an unprimeable number, because it can be changed into a prime (155129749) 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, 546090 + ... + 546373.

It is an arithmetic number, because the mean of its divisors is an integer number (29496528).

Almost surely, 2^155129746 is an apocalyptic number.

155129746 is a deficient number, since it is larger than the sum of its proper divisors (80842478).

155129746 is a wasteful number, since it uses less digits than its factorization.

155129746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092536.

The product of its digits is 75600, while the sum is 40.

The square root of 155129746 is about 12455.1092327607. The cubic root of 155129746 is about 537.3183764217.

The spelling of 155129746 in words is "one hundred fifty-five million, one hundred twenty-nine thousand, seven hundred forty-six".