155461630 has 16 divisors (see below), whose sum is σ = 281969424. Its totient is φ = 61709440.

The previous prime is 155461517. The next prime is 155461639. The reversal of 155461630 is 36164551.

It is a junction number, because it is equal to n+sod(n) for n = 155461592 and 155461601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155461639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58027 + ... + 60646.

It is an arithmetic number, because the mean of its divisors is an integer number (17623089).

Almost surely, 2^155461630 is an apocalyptic number.

155461630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155461630 is a deficient number, since it is larger than the sum of its proper divisors (126507794).

155461630 is a wasteful number, since it uses less digits than its factorization.

155461630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118811.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 155461630 is about 12468.4253215873. The cubic root of 155461630 is about 537.7012824656.

It can be divided in two parts, 15 and 5461630, that added together give a palindrome (5461645).

The spelling of 155461630 in words is "one hundred fifty-five million, four hundred sixty-one thousand, six hundred thirty".