155131148 has 6 divisors (see below), whose sum is σ = 271479516. Its totient is φ = 77565572.

The previous prime is 155131147. The next prime is 155131153. The reversal of 155131148 is 841131551.

155131148 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×155131148³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 155131148.

It is not an unprimeable number, because it can be changed into a prime (155131147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19391390 + ... + 19391397.

It is an arithmetic number, because the mean of its divisors is an integer number (45246586).

Almost surely, 2^155131148 is an apocalyptic number.

It is an amenable number.

155131148 is a deficient number, since it is larger than the sum of its proper divisors (116348368).

155131148 is a wasteful number, since it uses less digits than its factorization.

155131148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38782791 (or 38782789 counting only the distinct ones).

The product of its digits is 2400, while the sum is 29.

The square root of 155131148 is about 12455.1655147573. The cubic root of 155131148 is about 537.3199951057.

Adding to 155131148 its reverse (841131551), we get a palindrome (996262699).

It can be divided in two parts, 15513 and 1148, that added together give a palindrome (16661).

The spelling of 155131148 in words is "one hundred fifty-five million, one hundred thirty-one thousand, one hundred forty-eight".