101247380 has 48 divisors (see below), whose sum is σ = 238944384. Its totient is φ = 35756160.

The previous prime is 101247347. The next prime is 101247383. The reversal of 101247380 is 83742101.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101247383) 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 15 ways as a sum of consecutive naturals, for example, 2486 + ... + 14445.

It is an arithmetic number, because the mean of its divisors is an integer number (4978008).

Almost surely, 2^101247380 is an apocalyptic number.

101247380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101247380 is an abundant number, since it is smaller than the sum of its proper divisors (137697004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101247380 is a wasteful number, since it uses less digits than its factorization.

101247380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16976 (or 16974 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 101247380 is about 10062.1757090601. The cubic root of 101247380 is about 466.0808556366.

Adding to 101247380 its reverse (83742101), we get a palindrome (184989481).

The spelling of 101247380 in words is "one hundred one million, two hundred forty-seven thousand, three hundred eighty".