101430772 has 12 divisors (see below), whose sum is σ = 187945380. Its totient is φ = 47732096.

The previous prime is 101430767. The next prime is 101430779. The reversal of 101430772 is 277034101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28259856 + 73170916 = 5316^2 + 8554^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101430779) 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, 745747 + ... + 745882.

It is an arithmetic number, because the mean of its divisors is an integer number (15662115).

Almost surely, 2^101430772 is an apocalyptic number.

It is an amenable number.

101430772 is a deficient number, since it is larger than the sum of its proper divisors (86514608).

101430772 is a wasteful number, since it uses less digits than its factorization.

101430772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491650 (or 1491648 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 101430772 is about 10071.2845258189. The cubic root of 101430772 is about 466.3620940059.

Adding to 101430772 its reverse (277034101), we get a palindrome (378464873).

The spelling of 101430772 in words is "one hundred one million, four hundred thirty thousand, seven hundred seventy-two".