155472953 has 10 divisors (see below), whose sum is σ = 164247834. Its totient is φ = 147166704.

The previous prime is 155472937. The next prime is 155472959. The reversal of 155472953 is 359274551.

It can be written as a sum of positive squares in only one way, i.e., 133448704 + 22024249 = 11552^2 + 4693^2 .

It is not a de Polignac number, because 155472953 - 2⁴ = 155472937 is a prime.

It is a super-2 number, since 2×155472953² = 48343678229080418, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 155472953.

It is not an unprimeable number, because it can be changed into a prime (155472959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 129725 + ... + 130917.

Almost surely, 2^155472953 is an apocalyptic number.

It is an amenable number.

155472953 is a deficient number, since it is larger than the sum of its proper divisors (8774881).

155472953 is an frugal number, since it uses more digits than its factorization.

155472953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269 (or 1212 counting only the distinct ones).

The product of its digits is 189000, while the sum is 41.

The square root of 155472953 is about 12468.8793802811. The cubic root of 155472953 is about 537.7143365845.

The spelling of 155472953 in words is "one hundred fifty-five million, four hundred seventy-two thousand, nine hundred fifty-three".