1631230 has 16 divisors (see below), whose sum is σ = 2957760. Its totient is φ = 647712.

The previous prime is 1631209. The next prime is 1631243. The reversal of 1631230 is 321361.

It is a super-2 number, since 2×1631230² = 5321822625800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1051 + ... + 2089.

It is an arithmetic number, because the mean of its divisors is an integer number (184860).

2^1631230 is an apocalyptic number.

1631230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1631230 is a deficient number, since it is larger than the sum of its proper divisors (1326530).

1631230 is a wasteful number, since it uses less digits than its factorization.

1631230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1631230 is about 1277.1961478176. The cubic root of 1631230 is about 117.7167870470.

Adding to 1631230 its reverse (321361), we get a palindrome (1952591).

The spelling of 1631230 in words is "one million, six hundred thirty-one thousand, two hundred thirty".