101621402 has 16 divisors (see below), whose sum is σ = 155132712. Its totient is φ = 49916160.

The previous prime is 101621381. The next prime is 101621419. The reversal of 101621402 is 204126101.

It can be written as a sum of positive squares in 4 ways, for example, as 94497841 + 7123561 = 9721^2 + 2669^2 .

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, 39788 + ... + 42264.

Almost surely, 2^101621402 is an apocalyptic number.

101621402 is a deficient number, since it is larger than the sum of its proper divisors (53511310).

101621402 is a wasteful number, since it uses less digits than its factorization.

101621402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2833.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 101621402 is about 10080.7441193594. The cubic root of 101621402 is about 466.6540730162.

Adding to 101621402 its reverse (204126101), we get a palindrome (305747503).

The spelling of 101621402 in words is "one hundred one million, six hundred twenty-one thousand, four hundred two".