101025545 has 16 divisors (see below), whose sum is σ = 128293632. Its totient is φ = 76211520.

The previous prime is 101025541. The next prime is 101025557. The reversal of 101025545 is 545520101.

It is a happy number.

It is not a de Polignac number, because 101025545 - 2² = 101025541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 101025545.

It is not an unprimeable number, because it can be changed into a prime (101025541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1979 + ... + 14351.

It is an arithmetic number, because the mean of its divisors is an integer number (8018352).

Almost surely, 2^101025545 is an apocalyptic number.

It is an amenable number.

101025545 is a deficient number, since it is larger than the sum of its proper divisors (27268087).

101025545 is a wasteful number, since it uses less digits than its factorization.

101025545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12472.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 101025545 is about 10051.1464520223. The cubic root of 101025545 is about 465.7402092886.

Adding to 101025545 its reverse (545520101), we get a palindrome (646545646).

The spelling of 101025545 in words is "one hundred one million, twenty-five thousand, five hundred forty-five".